Type wkiting machine



l 4 ShevetsfSheet 1. Gr. W. N. YOST. TYPE WRTING MAGHlNB.

Patented lvm. 26, 1889.

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A TYPE WRITING MACHINE.' No. 400,384. 1 l Patented Mar. 26 1889.

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'4 Sheets-Sheet 4.

Patented Mar. 26, 1889.

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TYPE WRITIIIe- MACHINE.

(No Model.)

UNITED STATES PATENT` OFFICE.'

GEORGE W. N. VYOST, OF NEW YORK, N. Y., ASSIGNOR TO THE WRITING MACHINE MANUFACTURING COMPANY, OF SAME PLACE.

TYPE-WRITING MACHINE.

, SPECIFICATION' forming part of Letters PatentNo. 400,384, dated March 26, 1889.

Application filed September l0, 1887. Serial No. 249,321. (No model.)

` To all whom it, may concern.-

Be it known that I, GEORGE W. N. Yosr, a

citizen of the United Stateshand a resident of New York city, in the county of New York.

and State of New York, have invented certain new and useful Improvements in Type- Writing Machines, of which the following is a specification.

My invention relates to type-writing machines of the lever class, and particularly to that species of machines wherein the connecting-rods are vertically arranged and disposed in a circle, and are operated by means of keylevers or other devices which extend to the front of the machine, where they are provided with finger-keys for manipulation by the user of the machine.

In building machines of this description it has been found that some of the .connectingrods on the right and on the left hand side of the machine occupy so nearly the same vertical planes, taken longitudinally of the machine, as to .preclude the possibility of `arranging their respective key-levers directly opposite, or in line, (as maybe done with the key-levers of the remaining connecting-rods of the machine,) and to avoid this difficulty it is necessary to place some of the key-levers which operate said connecting-rods on the right` and on the left Ahand side in planes whollyexterior to the circle occupied by all of the connecting-rods.

The object of my invention is to .provide a means of connection between such connecting-rods and their respective key-levers (or other actuating devices) as do not lie inline or occupy the same vertical longitudinal planes; and to this-main end and object my inventioiiconsists in forming or providing each of such connecting-rods (or type-bar-actuating devices) with an offset or lateral eX- tension to connect with its proper key-lever, or with any other contrivance which may be employed to effect its operation in lieu of a key-lever; and my invention further consists in certain features of construction and combinations of parts, all as will be hereinafter more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a top view of a portion of a type-writing machine embodying my invention. Fig. 2 is a vertical. longitudinal section taken at the line :1: @c of Fig. 1, and looking in the direction of the arrow thereat. Fig., I3 is a vertical transverse section taken at the lines Y Y of Figs. l and 2, and looking in the direction of the arrow at Fig. 2. Fig. 4. is a skeleton view, in

perspective, to show the construction and arrangement of the offset or lateral connection. Fig. 5 is a plan view taken below the bedplate and illustrating the arrangement of connecting-rods, offsets, and key-levers. Fig. 6 is a transverse section of atype-writing machine, showing a modiiication of my invention. Fig. 7 is a skeleton perspective view showing another modification of my invention.

In the several views the same parts will be found designated by the same numerals and letters of reference.

.A is the top plate or type-ring, around I which are arranged the type bars or levers B, which are fulcrumed in hangers C, secured to the type-ring by means of screws D. In order to simplify the drawings as much as possible, l have shown only two type=bars; but it will of course be understood that in the complete machine type bars are hung all around the ring A, as heretofore. The typebars illustrated are of novel construction; but no claim thereto is made in this application, because they are the invention of another. Each type-bar is provided with a cam-surface, a., between its ends, against which the upper end of a connecting-rod, E, bears. Thelower end of the connecting rod or link-E is connected to the rear end of a key-lever, F, which, as shown, is a lever of thev first order fulcrulned cent-rally at b in a postor support, G. A

To the front end of the lever F is attached a finger-key, H, which, as usual, bears upon its upper end or face a character corresponding to the type on the bar with which it is in connection. v

l designates a bed-plate, through perforations in which the lowerV ends of the connecting-rods (which are arranged in a circle) and the finger-keys preferably pass, and J represents a key-board frame, through perforation s in which the upper portions of the finger-keys preferably work.

Referring now more particularly to Fig. 5, the small circles marked E represent the connecting-rods, those markedbthe pivots of the key-levers, and those marked H the fingerkeys, while the key-levers are represented by the straight lines F. In this figure it will be observed that about a dozen connecting-rods on the right-hand side and about a dozen on the left-hand side lie in longitudinal vertical planes overlapping one another, and that it would be practically impossible to connect to each a lever extending from the front of the machine in a corresponding or coincident plane, and at the same time have all the levers occupy substantially the same horizont-al plane. Therefore I place the key levers which are to operate upon such connectingrods in planes exterior thereto and make lateral connections between the same.

In the drawings will be found illustrated the means employed by me for coupling a connecting-rod occupying one plane longitudinally of the machine with a longitudinally-arran ged lever occupying another plane. The said means I designate an offset or lateral extension, which, as illustrated in Figs. l to 5, inclusive, consists of a socket, 2, for the reception of the lower end of a connecting-rod, a horizontal arm, 3, at right angles to said socket, a depending bifurcated hanger or leg, 4, for connection with a keylever, and of a vertically-projecting stem, 5, in line with said lever to guide the offset in its movements up and down and to retain it in position against any casual turning movement which might operate to throw it out of its properrelative position or have a tendency to twist-or bind it upon the key-lever. This stem 5 works in a perforation, c, in the bed-plate.

Referring again to Fig. 5 of the drawings, and particularly to the right and left hand sides thereof, E represents the connectingrods; 3, the horizontal arms of the offsets; 5, the guide pins or stems; F, the key-levers; b, their pivots or fulcrums, and H the fingerkeys.` From this ligure it will be observed that the horizontal arms of the offsets vary in length, the shortest one being at the front and the longest one at the rear of the center of the circle of connecting-rods. By this construction I am enabled to have all the keylevers arranged in parallel planes close together, and am enabled to obtain a greater number of linger-keys, and hence printingcharacters in a machine of given dimensions. From this figure it will also be observed that all of the key-levers which are arranged in line with their respective connecting-rods require no cross-connections, and that the offsets are to be employed only where the keylevers and the connecting-rods to which they are to be coupled lie in different vertical planes, as heretofore described.

In operation a depression of the nger-key will elevate the inner end of the key-lever and raise the connecting-rod attached there to. During the ascent of the connecting-rod the type-bar in connection therewith will be lifted to effect an impression upon the paper to be printed, which paper, for the sake of clearness, is omitted in the drawings, but which may be supported upon a traveling carriage, as customary in machines of Well-known construction. Upon a release of the pressure on the finger-key the connecting-rod and typebar will drop by gravity and all of the parts assume their normal positions, as indicated at Figs. 2 and 3.

It will be understood, of course, that when those key-levers having the offsets connected to them are operated the latter are lifted, and in turn effect a raising of the connecting-rods to which they are linked or associated.

In the modification shown at Fig. 6 the hori zontal arm or link 3, it will be observed, is located above the bed-plate I and the stem 5 dispensed with, the sockets 2 and 4 passing through perforations in the bed-plate. The operation of this contrivance is essentially the same as that described of the preceding In the modification shown at Fig. 7 a different means for actuating the cross-connection is illustrated. For the lever F is substituted a cam-bar, F that is coupled at its front end to one arm of a bell-crank or bent lever, F2, which is fulcrumed at f. 'lo the other arm of the bent lever is connected the finger-key H. The cam or wedge surface f2 of the bar engages with the leg or socket 4 of the offset when the finger-key is depressed and pulls down the offset and the connecting-rod E, attached thereto, as illustrated by the dotted lines. is attached in the usual way, and when the former is drawn down the front end of the type bar or lever is elevated to effect the impression. A forked guide, F, secured to the under side of the bed-plate, is preferably provided for the cam-bar. The invention of the cam-bar and bent lever as a means for actu ating connecting-rods is not mine, and hence I make no claim thereto specifically.

It will be understood, of course, that my invention may be incorporated in type-writers, wherein the means for actuating the connectz ing-rods consist of levers, or of the cam-bar contrvance shown, and wherein the connecting-rods are lifted to elevate the typebars, or are pulled down, as in the majority of machines constructed prior to my present invention. So, also, in lieu of the type-bar shown, others of dierent construction may be used.

The construction of machine illustrated has been selected by me on accountof its simplicity and adaptability to show or involve my invention, and hence I would have it understood that without departing therefrom the improvements devised by me may be embodied in machines varying greatly in detail To the connecting-rod E the type-bar Ico IIO

construction from the machine herein shown and described, the gist of my invention resting in the employment of an offset or lateralconnection` between the connecting-rod and the means employed for actuating said connecting-rod.

In lieu of the construction of offset shown, one differing in detail may be employed, and instead of making the same separate and distinct from the connecting-rod it may be formed integral therewith by bending the lower portion of the connecting-rod laterally to enable it to cross to the proper point lto be acted upon by the means employed to operate said connecting-rod. Y

What I claim as new, and desire to secure by Letters Patent, is-

l. In a type-writing machine, the combination of a vertically-arranged connecting-rod, a horizontally-arranged key-lever, or its described equivalent, and an offset or lateral connection between the two, substantially as andvfor the purpose set forth.

2. In a type-writing machine, and in combination, type-bars arranged in a circle, typebar-operating rods arranged in a circle, means, substantially as described, for actuating said rods, and oisets or cross-connections of Varying lengths between said means and said rods for such of said rods as lie substantially within the same longitudinal Vertical planes, substantially as set forth.

3. In a type-writing machine, a connectingrod provided with an oset, consisting of the socket 2, the arm 3, and the leg 4, as and for the purpose set forth.

vSigned at New York city, in the county of New York and State of New York, this 2d day of September, A. D. 1887.

G. W. N. YOST.

Vitnesses:

JACOB FELBEL, K. P. PRAY. 

